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I want to be able to send our customers email and/or SMS reminders when their billing dates are coming up. A couple issues:
1) How do you send SMS? Do I need to register for a SMS number or some service?
2) I don't want our company's domain to ever be marked for spam, and I fear if I send these notifications through our company's domain it may happen.
Is there a way I can setup a mail server using the same domain (or subdomain) that will not be marked as spam?
or is there a third party email and SMS provider that I can send messages through?
I know there are a lot of different marketing related email providers, but I don't know if it matters that these are more customer service related messages.